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An investigation of electrostatic probe perturbations on the operational characteristics of a Hall thruster and on the measurement of local plasma parameters
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
A high speed reciprocating probe system was constructed and used to investigate the perturbations of electrostatic probes on Hall thruster operations and on the measurement of local plasma parameters. Two regimes were investigated: inside the discharge chamber where the probe actively burned and at the exit plane where the probe experienced significant particle flux without burning. Experiments showed that in the interior of the thruster, significant probe material ablation occurred and severedoi:10.2514/6.1998-3656 fatcat:quzdbtsh3zd5tmfeagkw24rj4i